Multi-sealed multi-cavity filter

Abstract

The utility model relates to the field of multi-cavity filters, in particular to a multi-sealed multi-cavity filter, which comprises a filter shell. And the upper cover is installed above the filtering shell and used for protecting elements in the filtering shell, and a first clamping block is fixedly installed below the upper cover. According to the multi-sealed multi-cavity filter provided by the utility model, through the arrangement of the filter shell, the upper cover, the first clamping block, the first clamping groove, the sealing strip, the guide groove, the cover plate, the second clamping block and the second clamping groove, when the multi-sealed multi-cavity filter is installed, the second clamping block below the cover plate is aligned with the second clamping groove in the filter shell for butt joint; the sealing performance of the cover plate and the filtering shell is improved in a butt joint clamping mode, then the sealing strip is placed in the first clamping groove in the filtering shell, the first clamping block below the upper cover is inserted into the first clamping groove in the filtering shell, the sealing strip is pressed tightly, and therefore the sealing performance between the cover plate and the filtering shell is enhanced; and the sealing performance of the multi-cavity filter is improved.

Description

Technical Field

[0001] The utility model relates to the field of multi-cavity filters, in particular to a multi-cavity filter with multiple seals. Background Art

[0002] A filter is a circuit composed of capacitors, inductors, and resistors. It can effectively filter out frequencies at or beyond a specific frequency in a power line, effectively eliminating a power signal at a specific frequency or eliminating a power signal after a specific frequency. A multi-cavity filter consists of multiple cavities.

[0003] After searching, a utility model cavity filter with publication number CN211265682U was found, comprising: a base plate; a plurality of resonant rods located on the base plate; a cover, wherein a cavity is provided in the cover, and the cover and the base plate are used to encapsulate the plurality of resonant rods in the cavity. In the embodiment of the utility model, since a cavity is provided in the cover, and the plurality of resonant rods are encapsulated in the cavity, no cavity is provided in the base plate, and the plurality of resonant rods can be located on the surface of the base plate. In this way, when processing the plurality of resonant rods, there is no restriction on the size of the cavity, thereby reducing the difficulty and cost of processing. It can also reduce the size and weight of the cavity filter, thereby enhancing market competitiveness.

[0004] The existing multi-cavity filter in the above patent has only one layer of flat rubber gasket, which cannot seal the upper cover and the filter body well. After long-term use, the sealing sheet will age, resulting in reduced sealing effect. In the above comparative case, the upper cover is directly connected to the filter body through a threaded connection, and there is no mention or design of how to seal, which can easily lead to debris or water vapor entering the interior of the filter, causing damage to the filter.

[0005] Therefore, it is necessary to invent a multi-cavity filter with multiple seals to solve the above problems. Utility Model Content

[0006] The purpose of the present invention is to provide a multi-cavity filter with multiple seals to solve the problems raised in the above background technology.

[0007] In order to achieve the above-mentioned object, the present utility model provides the following technical solutions: a multi-seal multi-cavity filter, comprising a filter housing;

[0008] An upper cover is installed above the filter housing to protect the components inside the filter housing. A first clamping block is fixedly installed below the upper cover, and guide blocks are fixedly installed around the lower side of the upper cover.

[0009] A sealing strip is provided inside the filter housing for sealing the filter. A first slot is provided on the upper surface of the filter housing, and guide slots are provided on all four upper surfaces of the filter housing.

[0010] The cover plate is installed inside the filter housing to protect the components inside the filter housing. A second clamping block is fixedly installed below the cover plate. A second clamping groove is opened on the inner surface of the filter housing. An inner cavity is provided inside the filter housing.

[0011] Preferably, a first clamping block fixedly installed below the upper cover is engaged with a first clamping slot provided above the filter housing, and the first clamping block and the first clamping slot are used in conjunction with each other.

[0012] Preferably, a guide block fixedly installed below the upper cover is movably engaged with a guide groove provided on the upper surface of the filter housing, and the guide block and the guide groove are used in conjunction with each other.

[0013] Preferably, storage slots are provided on one side surface of the interior of the filter housing, and the storage slots are arranged in two groups.

[0014] Preferably, connecting blocks are fixedly installed on the front and rear sides of the filter housing, and sliding grooves are provided on the inner two side surfaces of the connecting block. A movable block is movably connected inside the sliding groove, and a torsion spring is fixedly provided below the movable block, and a screw rod passes through one side of the movable block.

[0015] Preferably, joints are provided on both sides of the filter housing, and a rubber ring is provided at one end of the joint.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] By arranging the filter housing, the upper cover, the first clamping block, the first clamping groove, the sealing strip, the guide groove, the cover plate, the second clamping block, and the second clamping groove, when the device is installed, the second clamping block below the cover plate is first aligned with the second clamping groove inside the filter housing for docking. By utilizing the docking and engaging method, the sealing performance of the cover plate and the filter housing is improved. Then, the sealing strip is placed into the first clamping groove in the filter housing, and then the first clamping block below the upper cover is inserted into the first clamping groove in the filter housing. The sealing strip is pressed to strengthen the sealing performance between the two. The sealing performance of the multi-cavity filter is improved by the multiple sealing design.

[0018] Through the arrangement of the filter housing, upper cover, connecting block, slide groove, movable block, torsion spring and screw, after the upper cover is put on the filter housing, the screw is used to penetrate the movable block, and then the movable block is pulled to move in the connecting block, so that one end of the screw is tightened on both sides of the upper cover, and the torsion spring is stretched and rebounded to tighten the screw and the movable block, so that the upper cover and the filter housing are more firmly connected, thereby improving the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the upper cover structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the filter housing of the present utility model;

[0023] Figure 4 This is a schematic diagram of the cover structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the movable block structure of the utility model.

[0025] Description of reference numerals:

[0026] 1. Filter housing; 2. Upper cover; 3. First clamping block; 4. Guide block; 5. First clamping slot; 6. Sealing strip; 7. Guide slot; 8. Storage slot; 9. Cover plate; 10. Second clamping block; 11. Second clamping slot; 12. Inner cavity; 13. Connecting block; 14. Slide slot; 15. Movable block; 16. Torsion spring; 17. Screw; 18. Connector; 19. Rubber ring. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The utility model provides Figure 1-5 The multi-sealed multi-cavity filter shown includes a filter housing 1;

[0029] The upper cover 2 is installed above the filter housing 1 to protect the components in the filter housing 1. A first clamping block 3 is fixedly installed below the upper cover 2, and guide blocks 4 are fixedly installed around the lower side of the upper cover 2.

[0030] The sealing strip 6 is provided inside the filter housing 1 and is used to seal the filter. A first slot 5 is provided on the upper surface of the filter housing 1, and guide slots 7 are provided on all four upper surfaces of the filter housing 1.

[0031] The cover plate 9 is installed inside the filter housing 1 and is used to protect the components inside the filter housing 1. A second card block 10 is fixedly installed below the cover plate 9. A second card groove 11 is provided on the inner surface of the filter housing 1. An inner cavity 12 is provided inside the filter housing 1. First, the second card block 10 below the cover plate 9 is aligned with the second card groove 11 inside the filter housing 1 for docking. By utilizing the docking engagement method, the sealing performance of the cover plate 9 and the filter housing 1 is improved. Then, the sealing strip 6 is placed into the first card groove 5 in the filter housing 1, and then the first card block 3 below the upper cover 2 is inserted into the first card groove 5 in the filter housing 1, and the sealing strip 6 is pressed to strengthen the sealing performance between the two.

[0032] like Figure 1 、 Figure 2 and Figure 3 As shown, the first clamping block 3 fixedly installed below the upper cover 2 is engaged with the first clamping slot 5 opened above the filter housing 1. The first clamping block 3 and the first clamping slot 5 are used in conjunction with each other, and the upper cover 2 is inserted into the filter housing 1 through the first clamping block 3 to form an engaging effect, thereby improving the sealing of the overall filter.

[0033] like Figure 1 、 Figure 2 and Figure 3 As shown, the guide block 4 fixedly installed below the upper cover 2 is movably engaged with the guide groove 7 provided on the upper surface of the filter housing 1. The guide block 4 and the guide groove 7 are used in conjunction with each other, and the upper cover 2 is inserted into the guide groove 7 through the guide block 4, so that the upper cover 2 can be easily aligned on the filter housing 1 during assembly.

[0034] like Figure 3 and Figure 4 As shown, a storage groove 8 is provided on one side surface of the inner side of the filter housing 1. The storage grooves 8 are arranged in two groups. The storage grooves 8 are arranged to classify and place the disassembled bolts, thereby improving practicality and avoiding loss of disassembled bolts due to disorderly placement.

[0035] like Figure 1 and Figure 5 As shown, connecting blocks 13 are fixedly installed on the front and back sides of the filter housing 1, and slide grooves 14 are provided on both sides of the inner surface of the connecting block 13. A movable block 15 is movably connected inside the slide groove 14, and a torsion spring 16 is fixedly provided below the movable block 15. A screw 17 is passed through one side of the movable block 15. After the upper cover 2 is covered on the filter housing 1, the screw 17 is used to pass through the movable block 15, and then the movable block 15 is pulled to move in the connecting block 13, so that one end of the screw 17 is tightened on both sides of the upper cover 2, and the torsion spring 16 is stretched and rebounded to tighten the screw 17 and the movable block 15, so that the upper cover 2 and the filter housing 1 are more firmly connected, thereby improving the overall stability.

[0036] like Figure 1As shown, joints 18 are provided on both sides of the filter housing 1, and a rubber ring 19 is provided at one end of the joint 18. When the filter-related circuit is connected to the joint 18, the rubber ring 19 will be directly put on the joint to wrap the joint, thereby improving the sealing effect of the connection, preventing external dust and moisture from entering the joint 18, and extending the service life of the filter.

[0037] The working principle of this utility model is as follows: first, put the circuit board into the inner cavity 12 in the filter housing 1, then pass the connecting wire through the connector 18, and then put the rubber ring 19 directly on the connection to wrap the connection, then insert the second card block 10 under the cover plate 9 into the second card slot 11 in the filter housing 1 to engage in docking, and then pass the bolt through the cover plate 9 and the filter housing 1 to make a threaded connection. After tightening, put the sealing strip 6 into the first card slot 5 in the filter housing 1, and then insert the first card block 3 under the upper cover 2 into the filter housing 1. Into the first card slot 5 in the filter housing 1, let the first card block 3 press the sealing strip 6 to strengthen the sealing between the two. After the upper cover 2 is covered, the screw 17 is used to penetrate the movable block 15, and then the movable block 15 is pulled up and down in the connecting block 13, so that one end of the screw 17 is tightened on both sides of the upper cover 2, and through the stretching and rebound effect of the torsion spring 16, the screw 17 and the movable block 15 are tightened, so that the upper cover 2 and the filter housing 1 are more firmly connected. In this way, the use process of the multi-sealed multi-cavity filter is completed.

[0038] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-seal multi-cavity filter, characterized by: comprising a filter housing (1); An upper cover (2) is installed above the filter housing (1) and is used to protect the components inside the filter housing (1); a first clamping block (3) is fixedly installed below the upper cover (2); and guide blocks (4) are fixedly installed around the lower side of the upper cover (2); A sealing strip (6) is provided inside the filter housing (1) and is used to seal the filter. A first slot (5) is provided on the upper surface of the filter housing (1), and guide slots (7) are provided on all four upper surfaces of the filter housing (1). A cover plate (9) is installed inside the filter housing (1) and is used to protect the components inside the filter housing (1); a second clamping block (10) is fixedly installed below the cover plate (9); a second clamping groove (11) is provided on the inner surface of the filter housing (1); and an inner cavity (12) is provided inside the filter housing (1).

2. The multi-seal multi-cavity filter according to claim 1, characterized in that: A first clamping block (3) fixedly mounted below the upper cover (2) and a first clamping slot (5) provided above the filter housing (1) form a clamping connection, and the first clamping block (3) and the first clamping slot (5) are used in conjunction with each other.

3. The multi-seal multi-cavity filter according to claim 1, characterized in that: The guide block (4) fixedly mounted below the upper cover (2) is movably engaged with the guide groove (7) provided on the upper surface of the filter housing (1), and the guide block (4) and the guide groove (7) are used in conjunction with each other.

4. The multi-seal multi-cavity filter according to claim 1, characterized in that: Storage slots (8) are provided on one side surface of the interior of the filter housing (1), and the storage slots (8) are arranged in two groups.

5. The multi-seal multi-cavity filter according to claim 1, characterized in that: Connecting blocks (13) are fixedly mounted on both the front and rear sides of the filter housing (1), and sliding grooves (14) are provided on both sides of the inner surface of the connecting block (13). A movable block (15) is movably connected to the inner surface of the sliding groove (14), and a torsion spring (16) is fixedly provided below the movable block (15). A screw rod (17) passes through one side of the movable block (15).

6. The multi-seal multi-cavity filter according to claim 1, characterized in that: Joints (18) are provided on both sides of the filter housing (1), and a rubber ring (19) is provided at one end of the joint (18).

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